Dear All, Below is a reminder of the dates and times of the next monthly practical amateur radio astronomy online meetings. Please note the change to the start time of…
A muon hodoscope doesn’t just count how many muons hit it — it also tells you which direction they’re coming from, with pretty good accuracy. That turns out to be…
https://sidstation.loudet.org/sw-en.xhtml
VLF (Very Low Frequency, 3–30 kHz) behaves quite differently from higher-frequency radio because the wavelength is enormous (10–100 km). Under polar ice caps, two main propagation situations exist: These give…
Click on link below to download: https://www.astronomy.me.uk/wp-content/uploads/2026/03/John-Berman-SID-Presentation-BAA-VLF-Meeting-160326.pdf
Hi Andrew We now have a new page giving access to the radio astronomy section’s monthly meeting videos, and also videos from the specialist radio astronomy sub-groups: hydrogen line, GNU…
At 20 kHz you’re really designing a resonant system, not just adding a tuner box. For your kind of radio astronomy / interferometry work, the most practical approach is a…
Short answer: yes—but not in the way you’re probably expecting. 🚫 Off-the-shelf ham tuners: no All the usual amateur ATUs—like only cover roughly 1.8–30 MHz (HF). Even the “wideband” ones…
For a VLF loop antenna used to monitor Sudden Ionospheric Disturbances (SIDs), the received signal strength mainly depends on the loop area × number of turns, not simply the total…
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